RPE and RIR, translated into an estimated max and into the weight to load next time.
Method (transparent, no magic table). RPE is converted to reps in reserve (RPE 10 = 0, 9 = 1, 8 = 2…), then to effective reps (reps + RIR + 1) and fed into the Epley formula. It is an estimate: RPE is subjective and the model drifts above 10 effective reps.
Tools are free and account-free. The saved version is planned — not for sale yet.